O,O-dipropyl chlorothiophosphate synthesis
- Product Name:O,O-dipropyl chlorothiophosphate
- CAS Number:2524-05-2
- Molecular formula:C6H14ClO2PS
- Molecular Weight:216.67
71-23-8
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Yield:2524-05-2 70%
Reaction Conditions:
with trichlorothiophosphine at -10 - -5; for 2 h;
Steps:
5.1 First step reaction: Preparation of oxy, oxy-dipropyl thiophosphoryl chloride:
8.5g (0.05mol) of phosphorus trichlorideInto a three-neck bottle,Stir cold to -10 °C.6.1 g (0.1 mol) of propanol was slowly added dropwise, the temperature was controlled at -5 ° C, and the dropwise addition was carried out for 1 h.Stirring was continued for 1 hour. The reaction was added to 0 ° C cold water for washing,Layered, the lower layer is dichloride.Cool to -10 °C.Will be 10.0g (0.1mol)Potassium hydrogencarbonate is added to the dichloride in batches,The temperature was maintained at -5 °C.After the addition, wash with 1% hydrochloric acid water, let stand for layering, and remove the layer.The product was obtained in 7.5 g, and the yield was 70%.
References:
CN110272452,2019,A Location in patent:Paragraph 0182-0184
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